Dear Sir,
I have to create a route program for my thesis. Its operation is different
from normal packet forwarding. Therefore, I need to forward all packets
instead of using normal packet forwarding in FreeBSD kernel. I capture
packets via Divert socket. It works well. I can grap IP packket including
its header. However, I use normal Raw IP socket to write the packets to
selected next-hop. I use socket option SO_DONTROUTE and IP_HDRINCL with my
Raw IP socket and use "sendto" to write packets with "sockaddr" set to the
IP of the next-hop-gateway. The sendto command always return error with
errno=22. How can I solve this error?
Thank you for all help.
Regards,
Sunthiti Patchararungruang
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